Sound Level Decibel Meter dB

SoundLevel turns your iPhone into a simple, beautiful sound-level meter. Point it at any environment and instantly see how loud it is — in decibels — with a clean circular gauge that shifts from green to red as the noise climbs. Whether you are checking a noisy office, a concert, a restaurant, a nursery, or a workshop, SoundLevel gives you a clear, real-time read on the sound around you. Key features: • Live decibel gauge — a large, color-coded dial shows the current dB level at a glance, from quiet green to loud red. • Session stats — track the peak, average, and minimum levels for your current session. • 60-second graph — watch sound levels rise and fall over the last minute, drawn with Swift Charts. • Session history — review the full chart and stats for the session you just measured. • High-dB alert — set a threshold and get notified when the noise crosses your limit. • Keep-screen-on option — leave the meter running without the display dimming. • Clean, native design — built with SwiftUI for iOS 17, fast and lightweight. Privacy by design: SoundLevel uses the microphone only to measure sound levels while you are actively measuring. Audio is never recorded, saved, or transmitted. The app has no analytics, no ads, no tracking, and no account. Everything stays on your device. Please note: dB readings are approximate and depend on your device's microphone. SoundLevel is intended as a general-purpose meter and is not a certified sound pressure level instrument. SoundLevel is for you if: • You want a quick way to check how loud a place is. • You care about protecting your hearing from loud environments. • You want a clean, ad-free utility that respects your privacy. PREMIUM Unlock everything with a 3-day free trial, then an affordable subscription — cancel anytime. No ads, no tracking; works on your device. — LEGAL — Terms of Use: https://web-levi.web.app/terms-of-use Privacy Policy: https://web-levi.web.app/privacy-policy — SUPPORT — Questions or feedback? Contact us at: tphuc.work@gmail.com